Description:
GW4 3-phase switch disconnctor.
Rated current:630A
Rated voltage:40.5KV
ISO9001:2008 certificate
Main features:
1.Complete in specifications,high technical parameters is high, wide range. Additional, wide scope of application , it can be used for high layout. Installation way is flexible.
2.Perfect sealing Performance and Resistant To Rust
3.Simple, reliable mechanical rotating way.
4.Perfect dustproof, waterproof, and anti-corrosion ability.
5.Full set of steel galvanized foundation frame and the vertical and horizontal dwang for option.
Technical data:
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Technical Specifications
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GW4-40.5
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GW4-72.5
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GW4-126
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Rated voltage kV
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40.5
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72.5
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126
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The rated current A
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1250, 2000
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Disconnector
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Rated peak withstand current kA
|
100
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Rated short-time withstand current (RMS)kA
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40
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Rated short circuit duration s
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4
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Grounding switch
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Rated peak withstand current kA
|
100
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Rated short-time withstand current (RMS)kA
|
40
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Rated short circuit duration s
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4
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Rated short-time power frequency withstand voltage (RMS) kV
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to earth
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95
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160
|
230
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across isolating point
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118
|
200
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230+70
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Rated lightning impulse withstand voltage (peak) kV
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to earth
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185
|
350
|
550
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across isolating point
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215
|
410
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550+100
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minimum clearance in 1 min power frequency withstand voltage when ground blade closing to live part of disconnector
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|
53
|
94
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164
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switching ability of earthing switch inductance current
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electromagnetic inductance current (current/voltage)
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50/0.5(A type), 100/6(B type)
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Static inductance current (current/voltage)
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0.4/3(A type), 5/6(B type)
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switching times
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10
|
10
|
10
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rated terminal static mechanic load N
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longitudinal level
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1000
|
1000
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1000, 1250
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Horizontal level
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750
|
750
|
750
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Vertical force
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1000
|
1000
|
1000
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switching capacitance current A
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|
2
|
2
|
2
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switching inductance current A
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|
1
|
1
|
1
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switching busbar for current transfer A (busbar transfer voltage 100V)
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400V, 2500A, 100 times
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Radio interference level
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less than 500 μV
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Mechanical life
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3000
|
3000
|
3000
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single pole weight (kg)
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|
240
|
300
|
350
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note: All applied in an altitude of 2000m
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